Home / 123,723.36-170,738.28-67,134.78

Finding the Fourth Proportional to 123,723.36, 170,738.28 and 67,134.78

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Solution

The fourth proportional to 123,723.36, 170,738.28 and 67,134.78 is: 92,646.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,723.36 : 170,738.28 = 67,134.78 : x
  2. Step 2: Convert to fraction form
    123,723.36/170,738.28 = 67,134.78/x
  3. Step 3: Cross multiply
    123,723.36x = 170,738.28 × 67,134.78
  4. Step 4: Simplify right side
    123,723.36x = 11,462,476,865.38
  5. Step 5: Solve for x
    x = 11,462,476,865.38/123,723.36
  6. Step 6: Final answer
    x = 92,646.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.